论文标题
来自不兼容的破坏通道的Einselect
Einselection from incompatible decoherence channels
论文作者
论文摘要
量子系统从与不受监控的环境的纠缠中的变形是迄今为止对量子世界古典图片出现的最引人注目的解释。虽然对于单个lindblad运算符而言，这是对复杂系统 - 环境相互作用的重新选择过程中的作用尚待澄清的。在本文中，我们分析了一个受CQED实验启发的开放量子动力学，该动力学具有两个非公认的Lindblad操作员在数字基础上建模的分解和在相干状态下的耗散性分解。我们使用量子轨迹和相位空间技术来精确研究和解决问题。在数值上研究了Einselection优化问题，我们认为这是为了找到最小化某些纠缠见证人的变化的状态。我们表明，Fock国家仍然是最强大的状态，直到关键的耦合。
Decoherence of quantum systems from entanglement with an unmonitored environment is to date the most compelling explanation of the emergence of a classical picture from a quantum world. While it is well understood for a single Lindblad operator, the role in the einselection process of a complex system-environment interaction remains to be clarified. In this paper, we analyze an open quantum dynamics inspired by CQED experiments with two non-commuting Lindblad operators modeling decoherence in the number basis and dissipative decoherence in the coherent state basis. We study and solve exactly the problem using quantum trajectories and phase-space techniques. The einselection optimization problem, which we consider to be about finding states minimizing the variation of some entanglement witness at a given energy, is studied numerically. We show that Fock states remain the most robust states to decoherence up to a critical coupling.
